WO2022021008A1

WO2022021008A1 - Method for determining sidelink configured grant resource, and terminal device

Info

Publication number: WO2022021008A1
Application number: PCT/CN2020/104893
Authority: WO
Inventors: 赵振山
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2022-02-03
Also published as: EP4192143A4; CN116347602A; US20230209516A1; EP4192143A1; CN115669119A

Abstract

Embodiments of the present application provides a method and a terminal device for determining a sidelink configured grant source. When sidelink transmission needs to be performed, a terminal device can accurately determine a time domain resource corresponding to a Sidelink Configured Grant (SL CG). The method for determining the SL CG source comprises: the terminal device determines a time domain resource of a first SL CG according to first information, wherein the first information comprises at least one of the following: the number of time slots corresponding to periods of the first SL CG in a resource pool associated with the first SL CG; an average number of logical slots used for sidelink transmission in one radio frame; SFN information within time ranges of double SFNs; logical time slot information within the time ranges of the double SFNs; a time domain offset within the time ranges of the double SFNs; and an offset value of a target sidelink transmission resource in the first SL CG and a first sidelink transmission resource in the time domain.

Description

Method and terminal device for determining authorized resources for sidelink configuration

technical field

The embodiments of the present application relate to the field of communications, and more particularly, to a method and a terminal device for determining a sidelink configuration authorization resource.

Background technique

In the New Radio Vehicle to Everything (NR-V2X) system, the network device can allocate the Sidelink Configured Grant (SL CG) transmission resources to the terminal device. How to accurately determine the time domain resources of the SL CG by the terminal equipment during sideline transmission is an urgent technical problem to be solved.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method and a terminal device for determining a sidelink configuration authorization resource. When sidelink transmission is required, the terminal device can accurately determine the time domain resource corresponding to the SL CG.

In a first aspect, a method for determining a sidelink configuration authorization resource is provided, the method comprising:

The terminal device determines the time domain resources authorized by the first sideline configuration according to the first information, wherein,

The first information includes at least one of the following:

The period of the first sideline configuration grant corresponds to the number of time slots in the resource pool associated with the first sideline configuration grant, the average number of logical time slots used for sideline transmission in one radio frame, within the time range of dual SFN The SFN information, the logical time slot information within the time range of the dual SFN, the time domain offset within the time range of the dual SFN, the target sideline transmission resource and the first sideline transmission resource in the first sideline configuration grant Offset value in the time domain.

In a second aspect, a terminal device is provided for executing the method in the above-mentioned first aspect.

Specifically, the terminal device includes functional modules for executing the method in the first aspect.

In a third aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.

In a fourth aspect, an apparatus is provided for implementing the method in the above-mentioned first aspect.

Specifically, the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in the above-mentioned first aspect.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect.

In a sixth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to perform the method of the first aspect above.

In a seventh aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned first aspect.

Through the above technical solution, the terminal device determines the time domain resources authorized by the first sideline configuration according to the period of the first sideline configuration authorization and the number of corresponding time slots in the resource pool associated with the first sideline configuration authorization, so that the first sideline configuration authorization The authorized time domain resources are indexed in the resource pool associated with the configuration authorization of the first side row, so as to avoid the situation that a certain time slot does not belong to the resource pool associated with the configuration authorization of the first side row.

Alternatively, the terminal device determines the time domain resources authorized by the first sideline configuration in the time range of dual SFN, so as to avoid the problem that the number of logical time slots used for sideline transmission in the radio frame is different in each radio frame.

Or, the terminal device determines the time domain resources authorized by the first sideline configuration according to the offset value of the target sideline transmission resource in the first sideline configuration authorization and the first sideline transmission resource in the time domain, that is, In the case that multiple sideline transmission resources are included in one period of the first sideline configuration grant, other sideline transmission resources may be determined based on the offset value.

Description of drawings

FIG. 1 is a schematic diagram of inbound communication within a network coverage provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of a partial network coverage sideline communication provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a network coverage outside line communication provided by an embodiment of the present application.

FIG. 4 is a schematic diagram of a unicast sideline communication provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of a multicast sideline communication provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of a broadcast sideline communication provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of determining a sidelink time domain resource according to an embodiment of the present application.

FIG. 8 is a schematic flowchart of a method for determining a sidelink configuration grant resource according to an embodiment of the present application.

FIG. 9 is a schematic diagram of determining sidelink time domain resources according to an embodiment of the present application.

FIG. 10 is another schematic diagram of determining sidelink time domain resources according to an embodiment of the present application.

FIG. 11 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

FIG. 12 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

Fig. 14 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device can be a station (STATION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment or base station (gNB) in the PLMN network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

It should be noted that, in the sideline communication, according to the network coverage of the communicating terminal, it can be divided into network coverage innerline communication, as shown in Figure 1; part of the network coverage sideline communication, as shown in Figure 2 ; and network coverage outside the line communication, as shown in Figure 3.

Figure 1: In the network coverage of the uplink communication, all the terminals performing the sidelink communication are within the coverage of the same base station. Therefore, the above-mentioned terminals can receive the configuration signaling of the base station and perform the sidelink based on the same sidelink configuration. communication.

Figure 2: In the case of partial network coverage of sideline communication, some terminals performing sideline communication are located within the coverage of the base station, and these terminals can receive the configuration signaling of the base station, and perform sideline communication according to the configuration of the base station. The terminal outside the network coverage cannot receive the configuration signaling of the base station. In this case, the terminal outside the network coverage will use the pre-configuration information and the physical The information carried in the sideline broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) determines the sideline configuration and performs sideline communication.

Figure 3: For communication outside the network coverage, all the terminals performing the lateral communication are located outside the coverage of the network, and all the terminals determine the lateral configuration according to the pre-configuration information to perform the lateral communication.

It should be noted that device-to-device communication is based on a sidelink (Sidelink, SL) transmission technology based on device to device (D2D), and the communication data in the traditional cellular system is received or sent by the base station Different ways, so it has higher spectral efficiency and lower transmission delay. The Internet of Vehicles system adopts the method of terminal-to-terminal direct communication. Two transmission modes are defined in 3GPP, which are respectively recorded as Mode A and Mode B. The embodiments of the present application may be applied to Mode A and/or Mode B.

Mode A: The transmission resources of the terminal are allocated by the base station, and the terminal sends data on the sidelink according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the terminal, or can allocate semi-static transmission to the terminal. resource. As shown in FIG. 1 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sideline transmission to the terminal.

Mode B: The terminal selects a resource in the resource pool for data transmission. As shown in Figure 3, the terminal is located outside the coverage of the cell, and the terminal autonomously selects transmission resources from the preconfigured resource pool for sideline transmission; or, as shown in Figure 1, the terminal autonomously selects transmission resources from the resource pool configured by the network Perform side-by-side transfers.

It should be noted that in NR-V2X, users may be in a mixed mode, that is, they can use mode A to acquire resources, and they can use mode B to acquire resources at the same time.

In NR-V2X, automatic driving is supported, so higher requirements are placed on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, more Flexible resource allocation, etc.

In LTE-V2X, broadcast transmission is supported, and in NR-V2X, unicast and multicast transmissions are introduced. For unicast transmission, there is only one terminal at the receiving end. As shown in Figure 4, unicast transmission is performed between UE1 and UE2; for multicast transmission, the receiving end is all terminals in a communication group, or at a certain All terminals within the transmission distance, as shown in Figure 5, UE1, UE2, UE3 and UE4 form a communication group, in which UE1 sends data, and other terminal devices in this group are receiver terminals; The terminal is any terminal around the transmitting terminal. As shown in FIG. 6 , UE1 is the transmitting terminal, and other terminals around it, UE2-UE6, are all receiving terminals.

A resource pool is introduced into the sideline transmission system. The so-called resource pool is a collection of transmission resources. Whether it is a transmission resource configured by a network or a transmission resource independently selected by a terminal, it is a resource in the resource pool. Resource pools can be configured through pre-configuration or network configuration, and one or more resource pools can be configured. The resource pool is further divided into a sending resource pool and a receiving resource pool. The sending resource pool is that the transmission resources in the resource pool are used for sending sideline data; the receiving resource pool is that the terminal receives the sideline data on the transmission resources in the resource pool.

In LTE-V2X, the set of subframes in the physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) resource pool used for mode 3 (that is, the above-mentioned mode A) or mode 4 (that is, the above-mentioned mode B) sidelink transmission can be expressed as for

in,

The subframe index is relative to subframe #0 of the radio frame of SFN0 or DFN0 of the serving cell.

This set of subframes includes all subframes except the following subframes:

●Subframes configured with Sidelink Synchronization Signal (SLSS) resources;

● Downlink subframes and special subframes in the TDD system;

• Reserved subframes.

The terminal equipment determines the set of subframes allocated to the PSSCH resource pool as follows:

The end device according to the bitmap

Determine the time domain resources of the PSSCH resource pool;

If b _k' = 1, the subframe

belong to the resource pool. Wherein, k'=k mod L _bitmap , and the length L _bitmap of the bit bitmap is configured by the high layer.

In LTE-V2X, the resource pool is determined within a System Frame Number (SFN) or Direct Frame Number (DFN) cycle. A SFN cycle includes 10240 subframes, corresponding to

subframes

0 and 1 respectively. ,2,...,10239 (also known as physical time slots or physical subframes); remove synchronization subframes, downlink subframes, special subframes (ie, downlink subframes and special subframes in TDD systems), and reserved subframes frame (reserved subframe), the remaining subframes are numbered as

The number of remaining subframes can be divisible by L _bitmap , bitmap

Periodically repeats in the remaining subframes, the bit being 1 indicates that the subframe corresponding to the bit in the remaining subframes belongs to the resource pool, otherwise it does not belong to the resource pool.

As shown in Figure 7, one SFN cycle (or DFN cycle) includes 10240 subframes, the cycle of the synchronization signal is 160ms, and one synchronization cycle includes 2 synchronization subframes, so there are 128 synchronization subframes in one SFN cycle. frame, the length of the bitmap used to indicate the time domain resources of the resource pool is 10 bits, so 2 reserved subframes (reserved subframes) are required, and the number of remaining subframes is (10240-128-2=10110), which can be Divided by the length of the bitmap by 10, the remaining subframes are renumbered as 0, 1, 2, ..., 10109 (also known as logical slots or logical subframes), the first 3 bits of the bitmap are 1, and the remaining 7 The bit is 0, that is, in the remaining subframes, the first 3 subframes in every 10 subframes belong to the resource pool, and the remaining subframes do not belong to the resource pool. Since the bitmap needs to be repeated 1011 times in the remaining subframes to indicate whether all the subframes belong to the resource pool, and each bitmap cycle includes 3 subframes, there are 3033 subframes in one SFN cycle that belong to the resource pool. resource pool.

In NR-V2X, mode 1 and mode 2 resource allocation methods are supported. In mode 2, the terminal autonomously selects transmission resources from the resource pool for sideline transmission, that is, the above-mentioned mode B; in mode 1, the network allocates sideline transmission resources to the terminal, that is, the above-mentioned mode A. Specifically, the network device may allocate sideline transmission resources to the terminal in a dynamic scheduling (Dynamic Scheduling, DG) manner; or the network may allocate sideline configuration authorization (SL CG) transmission resources for the terminal, or called sideline license-free transmission resource. SL CG mainly includes two configuration authorization methods: the first type of sideline configuration authorization (type-1 Sidelink configured grant, type-1 SL CG) and the second type of configuration authorization (type-2 Sidelink configured grant, type-2 SL CG) ).

The first type of sideline configuration authorization: the network device configures sideline transmission resources for the terminal through radio resource control (Radio Resource Control, RRC) signaling. The RRC signaling configuration includes time domain resources, frequency domain resources, and demodulation reference signals ( All transmission resources and transmission parameters including Demodulation Reference Signal (DMRS), Modulation and Coding Scheme (MCS), etc. When the terminal device receives the high-layer parameters, it can immediately use the configured transmission parameters to perform lateral transmission on the configured time-frequency resources.

The second type of lateral configuration authorization: adopts a two-step resource configuration method, that is, the RRC+DCI method; first, the RRC signaling configuration includes the period, redundancy version, retransmission times, and hybrid automatic retransmission request of the time-frequency resources. (Hybrid Automatic Repeat reQuest, HARQ) process number and other transmission resources and transmission parameters, and then the DCI activates the transmission authorized by the second type of configuration, and configures other resources including time domain resources, frequency domain resources, MCS, etc. Transmission resources and transmission parameters. When the terminal device receives the RRC signaling, it cannot immediately use the resources and parameters configured by the high-level parameters for sideline transmission, but must wait for the corresponding downlink control information (Downlink Control Information, DCI) to activate the sideline configuration authorization to be received. After that, the sideline transmission can be performed. In addition, the network can deactivate the sideline configuration authorization through DCI, and after the terminal receives the deactivated DCI, it can no longer use the sideline configuration authorization transmission resource for sideline transmission.

For the first type of sideline configuration authorization (type-1 SL CG), the corresponding time domain resources are determined by the following formula 1:

[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×numberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+S×PeriodicitySL)modulo(1024×numberOfSLSlotsPerFrame) Equation 1

where, in Equation 1,

N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms, sl_periodCG represents the period of the SL CG configured by the network; numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame; logical The slot number in the frame represents the number of logical time slots in the radio frame; timeReferenceSFN represents the time reference SFN; sl-TimeOffsetCGType1 represents the time domain offset of type-1CG; S represents an arbitrary integer.

For the second type of sideline configuration authorization (type-2 SL CG), the corresponding time domain resources are determined by the following formula 2:

[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN _{start time} ×numberOfSLSlotsPerFrame+slot _{start time} )+S×PeriodicitySL]modulo(1024×numberOfSLSlotsPerFrame) Formula 2

where, in Equation 2,

N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms, sl_periodCG represents the period of the SL CG configured by the network; numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame; logical slot number in the frame represents the number of logical time slots in the radio frame; SFN _{start time} represents the SFN corresponding to the first PSSCH transmission opportunity in the CG resource; slot _{start time} represents the corresponding SFN of the first PSSCH transmission opportunity in the CG resource sl-TimeOffsetCGType1 represents the time domain offset of type-1CG; S represents any integer.

However, there are the following three problems in the above formula 1 and formula 2:

Question 1, in Equation 1 and Equation 2,

The parameter PeriodicitySL obtained by this formula includes all logical time slots available for sideline transmission (for example, corresponding to the second row in Figure 7), and SL CG is configured in a certain resource pool (for example, corresponding to Figure 7) The third line), and the length of the bitmap (bitmap) used to indicate the time slot of the resource pool is any value in [10, 100], which may not be an integer multiple of the number of time slots included in the 20ms time range. Therefore, the time slot determined according to the above formula 1 and formula 2 may not belong to the resource pool associated with the SL CG, and therefore does not belong to the time domain transmission resources authorized by the sideline configuration.

Question 2: In the

above formulas

1 and 2, numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame, but in the formula for determining the period, it is determined with a period of 20ms, and 20ms includes two For radio frames, the number of logical time slots available for sideline transmission in each radio frame may be different. frame) includes 3 logical time slots, and includes 7 logical time slots in the last 20ms (another radio frame). At this time, the value of numberOfSLSlotsPerFrame is different in different radio frames. Determine if it is 3 or 7.

Question 3: For SL CG, in each CG period, the network device can configure up to 3 transmission resources, and in the above formula for determining the authorized transmission resources for side-line configuration, only the first transmission in each period is considered The resources, namely sl-TimeOffsetCGType1 in type-1 SL CG, and SFN _{start time} and slot _{start time} in type-2 SL CG, do not consider the time domain position corresponding to the second or third transmission resource.

Based on the above problems, the present application proposes a solution for determining the authorized resources of the sidelink configuration, which can solve the above technical problems.

The technical solutions of the present application are described in detail below through specific embodiments.

FIG. 8 is a schematic flowchart of a method 200 for determining a sidelink configuration authorization resource according to an embodiment of the present application. As shown in FIG. 8 , the method 200 may include at least part of the following contents:

S210, the terminal device determines the time domain resources authorized by the first sideline configuration according to the first information, wherein,

The first information includes but is not limited to at least one of the following:

It should be noted that, in this embodiment of the present application, the time range of the dual SFN may be a time range of 20 ms.

Optionally, the first sideline configuration authorization may be a first type of sideline configuration authorization, where the first type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling. For details, reference may be made to the above-mentioned related description about the first type of sideline configuration authorization, which is not repeated here for brevity.

Optionally, the first sideline configuration authorization may also be a second type of sideline configuration authorization, where the second type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling and activated by DCI. For details, reference may be made to the above-mentioned related description about the second type of sideline configuration authorization, which is not repeated here for brevity.

Optionally, as Example 1, the first information includes the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant. That is, the terminal device may determine the time domain resources authorized by the first sideline configuration according to the number of corresponding time slots in the resource pool associated with the first sideline configuration grant according to the period of the first sideline configuration grant.

Optionally, in Example 1, the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant is determined by at least one of the following information:

The total length of the bitmap used to configure the time domain resources of the resource pool, the number of the first value taken in the bitmap used to configure the time domain resources of the resource pool, and the first side of the network device configuration configures the authorization period.

Optionally, the value of the resource pool associated with the first side row configuration authorization in the bitmap is the first value.

For example, the first value is 1.

Optionally, in Example 1, the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant can be obtained by the following formula 3.

Among them, N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms, sl_periodCG represents the period of the first sideline configuration authorization of the network configuration, and k represents the bitmap used to configure the time domain resources of the resource pool The value is 1 in the middle, and L represents the total length of the bitmap used to configure the time domain resources of the resource pool.

Specifically, in Example 1, the terminal device can obtain PeriodicitySL based on Equation 3.

Further, in the case that the first side row configuration authorization is the first type side row configuration authorization (type-1 SL CG), the terminal device substitutes the PeriodicitySL obtained by formula 3 into the above formula 1 to determine the first side row. line to configure authorized time domain resources. Or, in the case that the first sideline configuration authorization is the second type sideline configuration authorization (type-2 SL CG), the terminal device substitutes the PeriodicitySL obtained by formula 3 into the above formula 2 to determine the first sideline configuration authorization Configure authorized time domain resources.

In example 1, if time slot A belongs to a transmission opportunity of the first side row configuration grant, then time slot A+PeriodicitySL also belongs to the resource pool corresponding to the first side row configuration grant, and is also one of the first side row configuration grants line to configure authorized transport opportunities.

In Example 1, for example, the network device configures resources available for sideline transmission within 20ms as shown in Figures 9 and 10 below, that is, within the first 10ms, it includes 3 time slots available for sideline transmission, and in the second Each 10ms includes 7 time slots that can be used for sideline transmission, and at this time, N=10. The length of the bitmap used to configure the time domain resources of the resource pool is 15 bits, and a 1 is set for every 3 bits, that is, every 15 time slots available for sideline transmission includes 5 time slots belonging to the resource pool, The first sideline configuration authorization is associated with the resource pool.

For example, assuming that the first sideline configuration authorization is the first type of sideline configuration authorization (type-1 SL CG), and the period of the first sideline configuration authorization is 20ms, according to

PeriodicitySL=10 is obtained by calculation. If sl-TimeOffsetCGType1=0 configured by the network device, according to the above formula 1,

logical time slots

0, 10, 20, 30, ... are the time slots corresponding to the first side row configuration authorization, but According to the resource pool configuration information, time slot 10 and time slot 20 do not belong to the resource pool associated with the first side row configuration authorization, as shown in the fourth row in Figure 9 below. The slot 20) does not belong to the time domain transmission resource corresponding to the first sideline configuration grant, that is, it is not the available transmission resource of the first sideline configuration grant. Therefore, according to the formula

The determined time-domain resources authorized by the first sideline configuration are time slots 0 and 30, and the interval between two adjacent time-domain resources authorized by the first sideline configuration is 30 time slots, that is, 30ms, which is much larger than the network The first side row configuration authorization period of the device configuration is 10ms.

For another example, it is assumed that the first sideline configuration grant is the first type of sideline configuration grant (type-1 SL CG), and the period of the first sideline configuration grant is 20ms, L=15, k=5, N=10 ,according to

Calculated to obtain PeriodicitySL=4, that is, the period of the first sideline configuration grant is 4 time slots, and the 4 time slots are 4 time slots in the resource pool associated with the first sideline configuration grant. If the network device The configured sl-TimeOffsetCGType1=0, according to the above formula 1, the

logical time slots

0, 4, 8, 12, . The logical time slots 0, 12, 24, and 36 in the transmission time slot set, that is, the interval between two adjacent time domain resources authorized by the first side row configuration is 12 time slots, as shown in Figure 10, which is closer to The real period value (10ms) configured by the network device.

Therefore, in Example 1, the period of the first sideline configuration authorization configured by the network device is converted into the period of the first sideline configuration authorization by the above formula 3, and the corresponding number of time slots in the resource pool associated with the first sideline configuration authorization , so that the time slot belonging to the first side line configuration authorization is determined in its associated resource pool in the transmission resource determination formula of the first side line configuration authorization, so as to avoid the occurrence of a certain time slot that does not belong to the first side line configuration authorization association of the resource pool.

Optionally, as example 2, the first information includes an average number of logical time slots used for sideline transmission in one radio frame. That is, the terminal device may determine the time domain resources granted by the first sideline configuration according to the average number of logical time slots used for sideline transmission in the one radio frame.

Optionally, in Example 2, the average number of logical time slots for sideline transmission in the one radio frame includes:

The number of logical time slots used for sideline transmission in the first radio frame within the time range of dual SFN and the number of logical time slots used for sideline transmission within the second radio frame within the time range of dual SFN average value.

In Example 2, the average number of logical time slots used for sideline transmission in one radio frame can be obtained by the following formula 4: averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2 Equation 4

Among them, averagenumberOfSLSlotsPerFrame represents the average number of logical time slots used for sideline transmission in a radio frame, numberOfSLSlotsFirstFrame represents the number of logical time slots used for sideline transmission in the first radio frame within the time range of the dual SFN, numberOfSLSlotsSecondFrame represents The number of logical time slots used for sideline transmission in the second radio frame within the time range of the dual SFN.

It should be noted that, in Example 2, the numberOfSLSlotsPerFrame in the

above formulas

1 and 2 is replaced with averagenumberOfSLSlotsPerFrame, and the time domain resources authorized by the first side row configuration can be determined.

Therefore, in Example 2, the average number of logical time slots for sideline transmission in one radio frame is used to determine the time domain resources granted by the first sideline configuration, avoiding the problem that the numberOfSLSlotsPerFrame is different in each radio frame.

Optionally, as Example 3, the first information includes: SFN information within the time range of the dual SFN, logical time slot information within the time range of the dual SFN, and time domain offset within the time range of the dual SFN. That is, in Example 3, the terminal device may, according to the SFN information in the time range of the dual SFN, the logical time slot information in the time range of the dual SFN, and the time domain offset in the time range of the dual SFN, Determine the time domain resources authorized by the first side row configuration.

Optionally, in Example 3, the SFN information within the time range of the dual SFN includes at least one of the following:

The SFN index in the time range of the dual SFN, the reference SFN index used for determining the time domain offset in the time range of the dual SFN, and the index of the dual SFN corresponding to the first transmission opportunity in the first side row configuration grant.

Optionally, in Example 3, the logical time slot information within the time range of the dual SFN includes at least one of the following:

The number of logical time slots used for sideline transmission within the time range of the dual SFN, the index of the logical time slots used for sideline transmission within the time range of the dual SFN, the first transmission opportunity in the first sideline configuration grant corresponds to The index of the logical slot within the time range of the dual SFN.

Optionally, in Example 3, the time domain offset within the time range of the dual SFN includes one of the following:

Relative to the time domain offset of SFN=0, relative to the time domain offset of the reference SFN index used to determine the time domain offset in the time range of the dual SFN.

Optionally, in Example 3, when the first sideline configuration authorization is a first-type sideline configuration authorization (type-1 SL CG), the terminal device may determine the first sideline configuration based on the following formula 5: Authorized time domain resource.

[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=(timeReferenceDoubleSFN×numberOfSLSlotsPerDoubleFrame+sl-TimeOffsetCGType1+S×PeriodicitySL)modulo(512×numberOfSLSlotsPerDoubleFrame) Formula 5

Wherein, in Equation 5, DoubleSFN represents the SFN index within the time range of double SFN. For example, the index range of SFN is [0,1023], that is, 1024 radio frames are included in 10240ms, and the index range of DoubleSFN is [0,511]; numberOfSLSlotsPerDoubleFrame represents the number of logical time slots used for sideline transmission within the time range of double SFN; logical slot number in the double frame represents the index of the logical time slot used for sideline transmission within the time range of dual SFN; sl-TimeOffsetCGType1 represents The time domain offset within the time range of the double SFN; timeReferenceDoubleSFN represents the reference SFN index used to determine the time domain offset within the time range of the double SFN; S is an arbitrary integer;

or,

N represents the number of logical time slots that can be used for sideline transmission within the time range of the dual SFN, sl_periodCG represents the period of the first sideline configuration grant of the network configuration, and k represents the bitmap used to configure the time domain resources of the resource pool The value is 1, and L represents the total length of the bitmap used to configure the time domain resources of the resource pool.

Optionally, in Example 3, when the first sideline configuration authorization is a second type sideline configuration authorization (type-2 SL CG), the terminal device may determine the first sideline configuration based on the following formula 6: Authorized time domain resource.

[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=[(DoubleSFN _{start time} ×numberOfSLSlotsPerDoubleFrame+slot _{start time} )+S×PeriodicitySL]modulo(512×numberOfSLSlotsPerDoubleFrame) Formula 6

Wherein, in Equation 6, DoubleSFN represents the SFN index within the time range of double SFN, for example, the index range of SFN is [0, 1023], that is, 1024 radio frames are included in 10240ms, and the index range of DoubleSFN is [0, 511]; numberOfSLSlotsPerDoubleFrame represents the number of logical time slots used for sideline transmission within the time range of double SFN; logical slot number in the double frame represents the index of the logical time slot used for sideline transmission within the time range of double SFN; DoubleSFN _{start time} represents The index of the dual SFN corresponding to the first transmission opportunity in the first sideline configuration grant; slot _{start time} represents the index of the logical time slot within the time range of the dual SFN corresponding to the first transmission opportunity in the first sideline configuration grant; S is any integer;

or,

Therefore, in Example 3, the time domain resources authorized by the first sideline configuration are determined in the time range of the dual SFN, which avoids the problem that the numberOfSLSlotsPerFrame is different in each radio frame.

Optionally, as Example 4, the first information includes an offset value in the time domain between the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource. That is, the terminal device may determine the time domain of the first sideline configuration authorization according to the offset value in the time domain between the target sideline transmission resource and the first sideline transmission resource in the first sideline configuration authorization resource.

Optionally, in Example 4, when the first sideline configuration authorization is a first-type sideline configuration authorization (type-1 SL CG), the terminal device may determine the first sideline configuration based on the following formula 7: Authorized time domain resource.

[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×numberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(1024×numberOfSLSlotsPerFrame) Formula 7

where, in Equation 7,

or,

N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms, sl_periodCG represents the period of the SL CG configured by the network, and k represents the value of 1 in the bitmap used to configure the time domain resources of the resource pool. Number, L represents the total length of the bitmap used to configure the time domain resources of the resource pool; numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame; logical slot number in the frame represents the logical slot in the radio frame. The number of time slots; timeReferenceSFN represents the time reference SFN; sl-TimeOffsetCGType1 represents the time domain offset of type-1CG; T represents the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain Offset value on ; S represents any integer.

Optionally, in Example 4, when the first sideline configuration authorization is a second type sideline configuration authorization (type-2 SL CG), the terminal device may determine the first sideline configuration based on the following formula 8: Authorized time domain resource.

[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN _start _time ×numberOfSLSlotsPerFrame+slot _start _time )+T+S×PeriodicitySL]modulo(1024×numberOfSLSlotsPerFrame) Equation 8

where, in Equation 8,

or,

N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms, sl_periodCG represents the period of the SL CG configured by the network, and k represents the value of 1 in the bitmap used to configure the time domain resources of the resource pool. Number, L represents the total length of the bitmap used to configure the time domain resources of the resource pool; numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame; logical slot number in the frame represents the logical slot in the radio frame. The number of time slots; SFN _{start time} represents the SFN corresponding to the first PSSCH transmission opportunity in the CG resource; slot _{start time} represents the logical time slot corresponding to the first PSSCH transmission opportunity in the CG resource; sl-TimeOffsetCGType1 represents the type The time domain offset of -1CG; T represents the offset value of the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain; S represents an arbitrary integer.

It should be noted that, in the above formulas 7 and 8, in the case that only one sideline transmission resource is included in one cycle of the first sideline configuration grant, then T=0, that is, the target sideline transmission resource is the same as the first sideline transmission resource. A sideline transmission resource is the same resource. In the case where two sideline transmission resources are included in one period of the first sideline configuration grant, for example, the time slots corresponding to the two sideline transmission resources are t1 and t2 respectively, that is, the target sideline transmission resource is the second sideline transmission resource. Sideline transmission resource, in this case, T=t2-t1, that is, after the terminal device determines the time slot t1 corresponding to the first sideline transmission resource, the time slot t2 corresponding to the target sideline transmission resource can be determined based on T. In the case that three sideline transmission resources are included in one period of the first sideline configuration grant, it is assumed that the time slots corresponding to the three sideline transmission resources are t1, t2 and t3 respectively. For example, in the target sideline transmission resource In the case of the second sideline transmission resource, T=t2-t1, that is, after the terminal device determines the time slot t1 corresponding to the first sideline transmission resource, the time slot corresponding to the target sideline transmission resource can be determined based on T t2; for another example, when the target sideline transmission resource is the third sideline transmission resource, T=t3-t1, that is, after the terminal device determines the time slot t1 corresponding to the first sideline transmission resource, it can be based on T determines the time slot t3 corresponding to the target side line transmission resource.

Therefore, in Example 4, the terminal device determines the time domain of the first sideline configuration grant according to the offset value in the time domain between the target sideline transmission resource and the first sideline transmission resource in the first sideline configuration grant The resource, that is, in the case that a period of the first sideline configuration grant includes multiple sideline transmission resources, other sideline transmission resources may be determined based on the offset value.

It should be noted that, in the above four examples, the value of the resource pool associated with the first side row configuration authorization is 1 in the bitmap used to configure the time domain resources of the resource pool.

Optionally, in this embodiment of the present application, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the above four examples.

Optionally, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing example 1 and example 2. For example, in the case that the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 9. For another example, when the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 10.

[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×averagenumberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+S×PeriodicitySL)modulo(1024×averagenumberOfSLSlotsPerFrame) Formula 9

where, in Equation 9,

averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2. In addition, for other parameters in Formula 9, reference may be made to the description in Formula 1 above, and details are not repeated here.

[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN _{start time} ×averagenumberOfSLSlotsPerFrame+slot _{start time} )+S×PeriodicitySL]modulo(1024×averagenumberOfSLSlotsPerFrame) Formula 10

where, in Equation 10,

averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2. In addition, for other parameters in Formula 10, reference may be made to the description in Formula 2 above, which is not repeated here.

Optionally, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in Example 1 and Example 3 above. For example, in the case where the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 5, wherein,

For another example, in the case where the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resource of the first sideline configuration authorization based on the above formula 6, wherein,

Optionally, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in Example 1 and Example 4 above. For example, in the case where the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 7, wherein,

For another example, in the case where the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 8, wherein,

Optionally, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing example 2 and example 4. For example, in the case that the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 11. For another example, when the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 12.

[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×averagenumberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(1024×averagenumberOfSLSlotsPerFrame) Formula 11

Wherein, in Formula 11, averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2. In addition, for other parameters in Formula 11, reference may be made to the description in Formula 7 above, which will not be repeated here.

[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN _{start time} ×averagenumberOfSLSlotsPerFrame+slot _{start time} )+T+S×PeriodicitySL]modulo(1024×averagenumberOfSLSlotsPerFrame) Formula 12

Wherein, in Formula 12, averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2. In addition, for other parameters in Formula 12, reference may be made to the description in Formula 8 above, which will not be repeated here.

Optionally, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing example 3 and example 4. For example, in the case that the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 13. For another example, when the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 14.

[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=(timeReferenceDoubleSFN×numberOfSLSlotsPerDoubleFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(512×numberOfSLSlotsPerDoubleFrame) Equation 13

Among them, in formula 13, T represents the offset value of the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain, and other parameters can refer to the relevant description in the above formula 5 , and will not be repeated here.

[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=[(DoubleSFN _{start time} ×numberOfSLSlotsPerDoubleFrame+slot _{start time} )+T+S×PeriodicitySL]modulo(512×numberOfSLSlotsPerDoubleFrame) Formula 14

Among them, in formula 14, T represents the offset value of the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain, and other parameters can refer to the relevant description in the above formula 6 , and will not be repeated here.

Optionally, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing Example 1, Example 2, and Example 4. For example, in the case that the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 15. For another example, when the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 16.

[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×averagenumberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(1024×averagenumberOfSLSlotsPerFrame) Formula 15

where, in Equation 15,

averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2. In addition, for other parameters in Formula 15, reference may be made to the description in Formula 7 above, which will not be repeated here.

[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN _{start time} ×averagenumberOfSLSlotsPerFrame+slot _{start time} )+T+S×PeriodicitySL]modulo(1024×averagenumberOfSLSlotsPerFrame) Equation 16

where, in Equation 16,

averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2. In addition, for other parameters in Formula 16, reference may be made to the description in Formula 8 above, which will not be repeated here.

Optionally, the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in Example 1, Example 3, and Example 4 above. For example, when the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 13, where:

For another example, in the case where the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 14, where:

Optionally, in this embodiment of the present application, for the first type of sideline configuration authorization (type-1 SL CG), the network device may also configure at least one of the following parameters through RRC signaling:

The index of the sideline configuration authorization (sl-ConfigIndexCG), the pre-configured scheduling wireless network temporary identifier (Configured Scheduling RNTI, CS-RNTI) for sideline transmission (sl-CS-RNTI), the hybrid automatic retransmission request of the configuration authorization (Hybrid Automatic Repeat reQuest, HARQ) process number (nrofHARQ-Processes), the period of the first type of sideline configuration authorization (sl-periodCG), the time domain resource offset corresponding to SFN=0 for the first type of sideline configuration authorization ( sl-TimeOffsetCGType1), the time domain resource location (sl-TimeResourceCGType1) corresponding to SFN=0 of the first type of sideline configuration authorization, the maximum number of times that a transport block (Transport block, TB) can be transmitted using the configuration authorization (CG) (sl -CG-MaxTransNumList), the HARQ process offset (sl-harq-procID-offset) authorized by the first type of sideline configuration.

Optionally, in this embodiment of the present application, for the second type of sideline configuration authorization (type-2 SL CG), the network device may also configure at least one of the following parameters through RRC signaling:

The index of the sideline configuration authorization (sl-ConfigIndexCG), the CS-RNTI for sideline transmission (sl-CS-RNTI), the HARQ process number for the configuration authorization (nrofHARQ-Processes), the period of the second type of sideline configuration authorization (sl-periodCG), the maximum number of times a TB can transmit using the configuration grant (CG) (sl-CG-MaxTransNumList), the second type of sideline configuration grant HARQ process offset (sl-harq-procID-offset).

Therefore, in this embodiment of the present application, the terminal device determines the time domain resources authorized by the first sideline configuration according to the number of time slots corresponding to the first sideline configuration authorization period in the resource pool associated with the first sideline configuration grant, so that the first sideline configuration grants The time domain resources authorized by the configuration of the side row are indexed in the resource pool associated with the configuration authorization of the first side row, so as to avoid the situation that a certain time slot does not belong to the resource pool associated with the configuration authorization of the first side row.

The method embodiments of the present application are described in detail above with reference to FIGS. 8 to 10 , and the device embodiments of the present application are described in detail below with reference to FIGS. 11 to 14 . It should be understood that the device embodiments and the method embodiments correspond to each other, and are similar to For the description, refer to the method embodiment.

FIG. 11 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application. As shown in Figure 11, the terminal device 300 includes:

The processing unit 310 is configured to determine, according to the first information, the time domain resources authorized by the first sideline configuration, wherein:

The first information includes at least one of the following:

Optionally, the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant is determined by at least one of the following information:

Optionally, the first value is 1.

Optionally, the average number of logical time slots used for sideline transmission in the one radio frame includes:

Optionally, the SFN information within the time range of the dual SFN includes at least one of the following:

Optionally, the logical time slot information within the time range of the dual SFN includes at least one of the following:

Optionally, the time domain offset within the time range of the dual SFN includes one of the following:

Optionally, in the case that two sideline transmission resources are included in one period of the first sideline configuration authorization, the target sideline transmission resource is the second sideline transmission resource in the two sideline transmission resources. ;

In the case where three sideline transmission resources are included in one period of the first sideline configuration grant, the target sideline transmission resource is the second sideline transmission resource among the two sideline transmission resources, or the target sideline transmission resource is the second sideline transmission resource. The target sideline transmission resource is the third sideline transmission resource among the two sideline transmission resources.

Optionally, the first sideline configuration authorization is a first type of sideline configuration authorization, where the first type of sideline configuration authorization is a sideline configuration authorization configured by the network device through radio resource control RRC signaling; or,

The first sideline configuration authorization is a second type of sideline configuration authorization, where the second type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling and activated through downlink control information DCI.

Optionally, in some embodiments, the above-mentioned processing unit may be one or more processors.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 300 are respectively for realizing the method shown in FIG. 8 . The corresponding process of the terminal device in 200 is not repeated here for brevity.

FIG. 12 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application. The communication device 400 shown in FIG. 12 includes a processor 410, and the processor 410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 12 , the communication device 400 may further include a memory 420 . The processor 410 may call and run a computer program from the memory 420 to implement the methods in the embodiments of the present application.

The memory 420 may be a separate device independent of the processor 410 , or may be integrated in the processor 410 .

Optionally, as shown in FIG. 12 , the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by a device.

Among them, the transceiver 430 may include a transmitter and a receiver. The transceiver 430 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 400 may specifically be the network device in this embodiment of the present application, and the communication device 400 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .

Optionally, the communication device 400 may specifically be the mobile terminal/terminal device in the embodiments of the present application, and the communication device 400 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiments of the present application. , and will not be repeated here.

FIG. 13 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 500 shown in FIG. 13 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 13 , the apparatus 500 may further include a memory 520 . The processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.

The memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .

Optionally, the apparatus 500 may further include an input interface 530 . The processor 510 may control the input interface 530 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the apparatus 500 may further include an output interface 540 . The processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

Optionally, the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.

Optionally, the apparatus can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application. For brevity, here No longer.

Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.

FIG. 14 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in FIG. 14 , the communication system 600 includes a terminal device 610 and a network device 620 .

The terminal device 610 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 620 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. For such understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method for determining a sidelink configuration authorization resource, comprising:

The terminal device determines the time domain resources authorized by the first sideline configuration according to the first information, wherein,

The first information includes at least one of the following:

The period of the first sideline configuration grant corresponds to the number of time slots in the resource pool associated with the first sideline configuration grant, the average number of logical time slots used for sideline transmission in one radio frame, and the dual-system frame number SFN information within the time range of the SFN, logical time slot information within the time range of the dual SFN, time domain offset within the time range of the dual SFN, the target sideline transmission resources in the first sideline configuration grant and the first sideline transmission resources The offset value of a sideline transmission resource in the time domain.
The method according to claim 1, wherein the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant is determined by at least one of the following information :

The total length of the bitmap used to configure the time domain resources of the resource pool, the number of the first value used to configure the bitmap of the time domain resources of the resource pool, and the period of the configuration authorization on the first side of the network device configuration .
The method according to claim 2, wherein the value of the resource pool associated with the first side row configuration authorization in the bitmap is the first value.
The method of claim 2 or 3, wherein the first value is 1.
The method of claim 1, wherein the average number of logical time slots used for sideline transmission in the one radio frame comprises:

The number of logical time slots used for sideline transmission in the first radio frame within the time range of dual SFN and the number of logical time slots used for sideline transmission within the second radio frame within the time range of dual SFN average value.
The method of claim 1, wherein the SFN information within the time range of the dual SFN includes at least one of the following:

The SFN index in the time range of the dual SFN, the reference SFN index used for determining the time domain offset in the time range of the dual SFN, and the index of the dual SFN corresponding to the first transmission opportunity in the first side row configuration grant.
The method of claim 1, wherein the logical time slot information in the time range of the dual SFN includes at least one of the following:

The number of logical time slots used for sideline transmission within the time range of the dual SFN, the index of the logical time slots used for sideline transmission within the time range of the dual SFN, the first transmission opportunity in the first sideline configuration grant The index of the logical slot within the time range of the corresponding dual SFN.
The method of claim 1, wherein the time domain offset within the time range of the dual SFN comprises one of the following:

Relative to the time domain offset of SFN=0, relative to the time domain offset of the reference SFN index used to determine the time domain offset in the time range of the dual SFN.
The method of claim 1, wherein:

In the case that two sideline transmission resources are included in one period of the first sideline configuration grant, the target sideline transmission resource is the second sideline transmission resource in the two sideline transmission resources;

In the case that three sideline transmission resources are included in one period of the first sideline configuration grant, the target sideline transmission resource is the second sideline transmission resource among the two sideline transmission resources, Alternatively, the target sideline transmission resource is the third sideline transmission resource among the two sideline transmission resources.
The method according to any one of claims 1 to 9, wherein,

The first sideline configuration authorization is a first type of sideline configuration authorization, where the first type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling; or,

The first sideline configuration authorization is a second type of sideline configuration authorization, where the second type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling and activated through downlink control information DCI.
A terminal device, characterized in that it includes:

a processing unit, configured to determine the time domain resources authorized by the first sideline configuration according to the first information, wherein,

The first information includes at least one of the following:

The period of the first sideline configuration grant corresponds to the number of time slots in the resource pool associated with the first sideline configuration grant, the average number of logical time slots used for sideline transmission in one radio frame, and the dual-system frame number SFN information within the time range of the SFN, logical time slot information within the time range of the dual SFN, time domain offset within the time range of the dual SFN, the target sideline transmission resources in the first sideline configuration grant and the first sideline transmission resources The offset value of a sideline transmission resource in the time domain.
The terminal device according to claim 11, wherein the period of the first sideline configuration grant corresponds to the number of time slots in the resource pool associated with the first sideline configuration grant is determined by at least one of the following information Sure:

The total length of the bitmap used to configure the time domain resources of the resource pool, the number of the first value used to configure the bitmap of the time domain resources of the resource pool, and the period of the configuration authorization on the first side of the network device configuration .
The terminal device according to claim 12, wherein the value of the resource pool associated with the first side row configuration authorization in the bitmap is the first value.
The terminal device according to claim 12 or 13, wherein the first value is 1.
The terminal device according to claim 11, wherein the average number of logical time slots used for sideline transmission in the one radio frame comprises:

The number of logical time slots used for sideline transmission in the first radio frame within the time range of dual SFN and the number of logical time slots used for sideline transmission within the second radio frame within the time range of dual SFN average value.
The terminal device according to claim 11, wherein the SFN information within the time range of the dual SFN includes at least one of the following:

The SFN index in the time range of the dual SFN, the reference SFN index used for determining the time domain offset in the time range of the dual SFN, and the index of the dual SFN corresponding to the first transmission opportunity in the first side row configuration grant.
The terminal device according to claim 11, wherein the logical time slot information within the time range of the dual SFN includes at least one of the following:

The number of logical time slots used for sideline transmission within the time range of the dual SFN, the index of the logical time slots used for sideline transmission within the time range of the dual SFN, the first transmission opportunity in the first sideline configuration grant The index of the logical slot within the time range of the corresponding dual SFN.
The terminal device according to claim 11, wherein the time domain offset within the time range of the dual SFN comprises one of the following:

Relative to the time domain offset of SFN=0, relative to the time domain offset of the reference SFN index used to determine the time domain offset in the time range of the dual SFN.
The terminal device according to claim 11, wherein,

In the case that two sideline transmission resources are included in one period of the first sideline configuration grant, the target sideline transmission resource is the second sideline transmission resource in the two sideline transmission resources;

In the case that three sideline transmission resources are included in one period of the first sideline configuration grant, the target sideline transmission resource is the second sideline transmission resource among the two sideline transmission resources, Alternatively, the target sideline transmission resource is the third sideline transmission resource among the two sideline transmission resources.
The terminal device according to any one of claims 11 to 19, wherein,

The first sideline configuration authorization is a first type of sideline configuration authorization, where the first type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling; or,

The first sideline configuration authorization is a second type of sideline configuration authorization, where the second type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling and activated through downlink control information DCI.
A terminal device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 10. one of the methods described.
A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 10.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 10.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 10.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 10.